Single-head-carton-sealing machine



Nov. 20 1923. 1 1,474,480

lw. D. KIMBALI. E T AL SINGLE HEAD CARTON SEALING MACHlNE Filed July 15 1920 Patented Nov. 20, 1923.

navata vvnninicnv D. KIMBALL AND .ARTHUR E. RIDEOUT, or NEW Yoan, N. Y."

Application filed July 15, 1920. Serial No. 396,361.

To all whom t may concern.

Be it known that we, WALLACE D. KIM- BALL and ARTHUR E. RDEOUT, both citizens of the United States, and residents of the city, county, and State of N ew York, have inventedl certain new and useful Improvements in Single-Head-Carton-Sealing Machines; and we do hereby declare the following toa full, clear, and exact'description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to carton-sealing machines of the character employed for lsealing theflaps of the heavy libre board packing cases now largelyemployed in lieu of wooden boxes for packing goods for shipment.

These cartons come flat knockdown condition, and the flaps at one end are usually folded down and sealed together before the box is packed Vand the other flaps are thereafterv closed upon'the material in the box and sealed. To effect a tight joint between the heavy cardboard flaps it is necessarythat the flaps be held together under considerable pressure, while the silicate or other adhesive the purpose of the present invention is to lprovide an apparatus for supporting the carton while the flaps are being folded and the adhesive applied, and to hold the gummedfiaps under properA pressure while drying.

VThe particular objects vention are to provide an apparatus of this character which holds the box in position to facilitate rapid work by the operatora'nd with which a heavy pressure may be applied to the folded flaps without undue exertion on the part of the operator.

Further objects of the invention` are to" provide a machine of simple design and rugged construction which will `be of lowYAY manufacturing cost and will withstand the hard usage to which machines of thisfcharacter are necessarily subjected.

In the accompanying drawings we have illustrated a4 preferred 'design of our improved machine,`and in the said drawings Figure 1 is a Vperspective view showing the machine with the sealedcarton still in place on the form, parts of the machine being broken awayto better show the mecha-V msm from the factory inl is drying, andVK `of the present in-V Hap tubular column 2, and working against the spring is a plunger rod lvvvhich has a telescoping movement in the column 2, the ex# tent of movement being limited ,by a cross pin 5 driven through slots 6 in the opposite sides of the column 2 and through a hole in theplunger 1.' The spring 3 is'of a length such that when the plunger is assembled in position it will be under the desired `initial compression to effect a -proper sealingof the flaps of the carton.

Supported on the top of the plunger 4v is .a form plate 7 of dimensions corresponding approximately to the inner dimensions of the carton to besealed.

The pin 5 also serves as a support forthe i lower end of the open carton. To this end therev is attached to. eachfend of the pin 5 a bracket 9having its lower end outturned to form a support 10 for the lower edges of the carton flapsito support the carton on the plunger'with the fold lines of its upper flapsrin the same plane as the corners of the formv'. vThe bracket 9 isslotted where it engages lthe'pin 5 so that it'may befadjusted on the pin to suit cartons of varying depth. To further support the carton in proper position the rear edge of the block 7 may -bel provided with any apron 11 at right angles to the outer face of the block to hold the carton against tendency to tilt to vertical position. j v

At the other twocorners of the triangle base standards 12 are mounted, the upper ends of the standards terminating at about the plane of the top of the form'plate 7.V 4 Hingedon one of the standards 12 is a cross r v bar or lever 13 which has attached. to its i under side ata point corresponding tov the middleV of theJ plate 17a round bearing 14 against which'aV-fo'rm platewor block 15 is held by. springs 16 Working on pins 17` set in the back of the form block and projecting on ahngepinv at thirty degrees to thehori-j loosely through holes in the lever 13. VThe hinge pin of the lever 13 extends parallel to the edge of the form block '7, that is, it liesV 21 projecting at Vright langles to its length p and with its nose curved to cooperate with the seat in theend of theV lever 13. c l The form blocks`7 and 15 are readily detachable from -their supports so that with different sizes of form blocksa single mavchine ymay vwithin reasonable limits be adapted for'di'erent size cartons.

The operation ofthe machine will'beapparntfrom the above description.A The operator takes the flat carton and opens it vup to squareform by' pressing against the opposite A folded lcorners and slips it .over the form until the edges of the lower flaps engage the ,supporting fingers 10 at the ends of the brackets 9. With the brackets properly adjusted the' carton'will be supported so that `theh'inge lines of the four upstandingiiaps coincide withthe corners of the block 7.' The twoinner flaps will then be folded down and the silicate applied, andthen the two outerfla'psfolded down againstthev Silicated surfaces of the innerf flaps.` The operator then'swings the lever-.13 down against the yfolded flaps and swingsy the lockinglever 19 over the end of the lever 13 with the handle of the lever 19 projectingfupwardly or in line with the links 18 which allows sufficient opening beneath the lever-19 to admit the end'of the lever 13 without compressing the spring 3, After the lever19jis in-` position over the 'concave 'seat of the lever 13, the handle 19 will be turned downto the position shown in Fig. 2 thereby compressing the spring/2 and forcingV thcpin 5 away from the slotsv in the column 2, sov that the full pressureofthe springcomes against the flaps held between the two presser blocks. In Vthis movement the block 15 canrook inany direction on the round bearing f14E to thenecessary extent,

kforthe block to adjust itself to any irregularities in the carton flaps sothat the pres.`

- sure will be equally applied :throughout vthe entire area ofthe flaps. Y

,By having the column-13 at an angleto the-base plate inthe manner shown, the .block ijs supportedhinmthe best positionto receive thecarton `v vith the least movement on the PS-I'VO-f thegoperator, and the arrangement ofthe .pressure head A15 "on the hinged cross bar `allows suiiicient roombetween the standarde 112 to' give `.free movement tothe :operator in silicating and folding the flaps.` rlhe cam lever 21 affords a large leverage to thel locking handle so that little exertion is required to put the flaps under heavy presl sure and the .cross lever 13 may be counterweighted, if desired,"tolessenlthe laborrequired to lift-the presser head to its normal open position slightly beyond the vertical` in which itis maintained when opened by the stop pin 22. f

Machines of this character are usually set up in groups of three for each'perator sothat twov cartons may be dryingwhile the third is being sealed. If desired, the present machine may obviously be formed in three units mounted on a single base-with each intermediate standard. supportingthe presser head of one unit'and the locking leverof the adjacent unit. Other modifications of the structure may also obviously-be `made" with-` out departing fromthe spiritof the invention.

We claim:

e 1. In a cartonl closing machine, the combination of a form block, means for supporting said block withits working face `at a fixed 'acute angle to the horizontal, said supporting means being fiXedly mounted at an angle to the `vertical andcomprising a hollow column, `a lplunger sliding therein, 1 and aspring within said column reacting on saidplunger for'resistingthe movement of said members in one direction,iand a `oresse'r block mounted to be pressedlagainst a form block with'its workingface'iparallel" vto the working `fac'e'of vthe form block.

2. In a carton-closing machine, the'combination of a'frm blockadapted to"re'ceive 'the carton tober"closed,'a Iresilient support for saidvform block normally.maintainingI its 'working yfaceV at a predetermined level, a presser vblock cooperating therewith,"a

hinged support for said presser block whereby it may be swung toward and away-from the working face Yof the formV block, a latch" for holdingsaid presser block down against the formblock with the working face'of' lthe latter vbelow its normal position wherebyk l its springsupport will beV active to hold: the presser faces together, and a] universal' mounting for one of said blocks Ywhereby it may adjust itselfto conform with; any irregularities in the vflaps ofthe carton;

3. Ina carton-closingA machine, the combination offaiform block, a 'supportthe're-" for comprising'a hollow column, a plus'fi'g'fer e telesooping therein" and'V upon whichfjthe form block'ismountedfa'spring in the oolumnfworki'ng againstxsaid plunger to maintain said V-formblook'normally in"'an"' elevated position, .aslot' fin; the saidI "column,

Va pin carried by saidplunger and working in ,said sloty to limit the upward movement,A of ythe `form Vblockfun'der '.pres'sure'ofgthe said spring and a carton-support carriedfla" by said pin to move in synchronism with the form block.

4. In a carton-closing machine, the combination of a form block, a support therefor comprising a hollow column, a plunger telescoping therein and upon which the form block is mounted, a spring in the column working against said plunger to maintain said form block normally in an elevated position, a slot in said column, a pin carried by said plunger and working in said slot to limit the upward movement of the form block under the pressure of the said spring, a carton-support carried by said pin to vmove its normal position .whereby the said spring support will be effective tomaintain a pressure on said block.

In testimony whereof we have hereunto affixed our signatures.

WALLACE D. KIMBALL.`

ARTHUR E RIDEOUT. 

